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You can create a tariff first, and then operating within the settings of the tariff, add price-lists, discounts, commission plans and other regulation a particular service requires.
Alternatively, you can first create price-lists, set discounts, develop commission plans and then form up a tariff grouping the created constituents together.
Creating a tariff for self-operated car hire
Price-Lists
Price-Lists for Extra Services
Penalties
Terms of Use
Discounts
Sub-Allotments